{"data":{"id":"us-va/9vac25-260-70","jurisdiction":"us-va","citation":"9VAC25-260-70","heading":"Maximum hourly temperature change","body":"The maximum hourly temperature change shall not exceed 2°C, except in the case of Class VI waters (natural trout waters) where it shall not exceed 0.5°C.  These criteria shall apply beyond the boundaries of mixing zones and are in addition to temperature changes caused by natural conditions.","path":["Title 9. Environment","Agency 25. State Water Control Board","Chapter 260. Water Quality Standards","Part I. Surface Water Standards with General, Statewide Application"],"source_url":"https://law.lis.virginia.gov/admincode/title9/agency25/chapter260/section70/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:49:14Z","sha256":"337cd057f6f9c8831da22513cf0b1cb15b463d22ae9242645eda00797ab9110f","source_id":"us-va-vac","stale":false,"prev":"us-va/9vac25-260-60","next":"us-va/9vac25-260-80"},"notice":"GroundRules: Original legal text. Not legal advice."}